how to debug a mavenized Java and flex integrated code

I am trying to debug a flex code integrated with java as a backend. It is a mavenized project and I am using eclipse . I tried going through similar question like How to debug Flex application under maven but I am not able to perform debugging properly. Can any one help me with this. I am not able to debug the code. The error which I am getting is very generic i.e. it just says problem in building the project and problem in executing the flex mojo. Can any one please help me with flex Debugging.

 Failed to execute goal org.sonatype.flexmojos:flexmojos-maven-plugin:3.9:compile-swf (default-compile-swf) on project succor-ui: Error compiling! -> [Help 1]
org.apache.maven.lifecycle.LifecycleExec开发者_如何学GoutionException: Failed to execute goal org.sonatype.flexmojos:flexmojos-maven-plugin:3.9:compile-swf (default-compile-swf) on project succor-ui: Error compiling!
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException: Error compiling!
    at org.sonatype.flexmojos.compiler.AbstractCompilerMojo.callCompiler(AbstractCompilerMojo.java:1141)
    at org.sonatype.flexmojos.compiler.AbstractCompilerMojo.run(AbstractCompilerMojo.java:2404)
    at org.sonatype.flexmojos.AbstractIrvinMojo.execute(AbstractIrvinMojo.java:155)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
    ... 19 more
[ERROR]